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http://dx.doi.org/10.5572/KOSAE.2016.32.4.394

Spatial Distribution of Air Pollution in the Ulsan Metropolitan Region  

Oh, Inbo (Environmental Health Center, University of Ulsan College of Medicine)
Bang, Jin-Hee (Environmental Health Center, University of Ulsan College of Medicine)
Kim, Soontae (Department of Environmental Safety Engineering, Ajou University)
Kim, Eunhye (Department of Environmental Safety Engineering, Ajou University)
Hwang, Mi-Kyoung (Department of Atmospheric Sciences, Pusan National University)
Kim, Yangho (Department of Occupational & Environmental Medicine, University of Ulsan College of Medicine)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.32, no.4, 2016 , pp. 394-407 More about this Journal
Abstract
The spatial air pollution distribution of the Ulsan metropolitan region (UMR) was analyzed using monitoring data and high-resolution numerical simulations. A three-year (2011~2014) analysis for the average concentrations from the 13 air quality monitoring sites in the UMR showed that $SO_2$ and $PM_{10}$ levels in industrial regions were much higher than those in other regions, whereas spatial differences of $NO_2$ and CO concentrations were not significant. In particular, elevated $O_3$ concentrations were clearly found at urban sites near petrochemical complex area. Results from high-resolution simulations by CMAQ model performed for four months of 2012 showed large spatial variations in grid-average pollutant concentrations between industrial areas and other areas in the UMR, which displayed significant changes with wind pattern by season. It was noted that the increases of $SO_2$ and $PM_{10}$ levels were limited in costal industrial areas or over the area nearby the sea in all seasons. Modeled $O_3$ concentrations were quite low in industrial areas and main urban roads with large $NO_x$ emissions. However, the model presented that all pollutant concentrations were significantly increased in the urban residential areas near the industrial complexes in summer season with increase of southerly wind.
Keywords
Air pollution; Ulsan metropolitan region; Industrial regions; CMAQ model;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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